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Selection or treatment of the reducing gases
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CPC
C21B13/0073
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Parent Industries
C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21B
MANUFACTURE OF IRON OR STEEL
C21B13/00
Making spongy iron or liquid steel, by direct processes
Current Industry
C21B13/0073
Selection or treatment of the reducing gases
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Overview
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Patents Grants
last 30 patents
Information
Patent Grant
Method and device for producing direct reduced metal
Patent number
12,104,222
Issue date
Oct 1, 2024
GREENIRON H2 AB
Hans Murray
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for increasing the carbon content of direct red...
Patent number
12,084,730
Issue date
Sep 10, 2024
Midrex Technologies, Inc.
Keith Marshall Bastow-Cox
C21 - METALLURGY OF IRON
Information
Patent Grant
Device for manufacturing molten iron
Patent number
12,084,731
Issue date
Sep 10, 2024
POSCO Co., Ltd
Chang Kuk Ko
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Direct reduced iron system and method
Patent number
12,060,622
Issue date
Aug 13, 2024
Nucor Corporation
Brad True
C21 - METALLURGY OF IRON
Information
Patent Grant
Direct reduction process utilizing hydrogen
Patent number
11,952,638
Issue date
Apr 9, 2024
Midrex Technologies, Inc.
Keith Marshall Bastow-Cox
C21 - METALLURGY OF IRON
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,898,798
Issue date
Feb 13, 2024
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-efficiency photonic furnaces for metal production
Patent number
11,852,412
Issue date
Dec 26, 2023
LIMELIGHT STEEL INC.
Olivia Faye Dippo
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Systems and methods for steel production
Patent number
11,788,158
Issue date
Oct 17, 2023
PATHFINDER HOLDINGS CORP.
James Maurice Small
C21 - METALLURGY OF IRON
Information
Patent Grant
Integration of DR plant and electric DRI melting furnace for produc...
Patent number
11,788,159
Issue date
Oct 17, 2023
Midrex Technologies, Inc.
Todd Michael Astoria
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction using vent gas
Patent number
11,773,459
Issue date
Oct 3, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert Millner
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and device for direct reduction with dry vent gas de-dusting
Patent number
11,697,855
Issue date
Jul 11, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Thomas Eder
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for direct reduction in a fluidized bed
Patent number
11,685,961
Issue date
Jun 27, 2023
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Roland Eisl
C21 - METALLURGY OF IRON
Information
Patent Grant
Direct reduction process utilizing hydrogen
Patent number
11,499,201
Issue date
Nov 15, 2022
Midrex Technologies, Inc.
Todd Michael Astoria
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Grant
Method and apparatus for producing direct reduced iron utilizing a...
Patent number
11,203,791
Issue date
Dec 21, 2021
Danieli & C. Officine Meccaniche SpA
Michele Condosta
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for syngas production and for efficient, flexib...
Patent number
11,142,832
Issue date
Oct 12, 2021
Battelle Energy Alliance, LLC
James E. O'Brien
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Reduction gas extraction from saturated top gas
Patent number
11,078,549
Issue date
Aug 3, 2021
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Andreas Steinwandter
C21 - METALLURGY OF IRON
Information
Patent Grant
Inductive bath plasma cupola
Patent number
11,073,049
Issue date
Jul 27, 2021
Plasma Tech Holdings, LLC
James Charles Juranitch
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Direct reduction with coal gasification and coke oven gas
Patent number
11,021,766
Issue date
Jun 1, 2021
Midrex Technologies, Inc.
Haruyasu Michishita
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Method and system for producing high-carbon DRI using syngas
Patent number
10,927,424
Issue date
Feb 23, 2021
HYL TECHNOLOGIES, S.A. DE C.V.
Eugenio Zendejas-Martinez
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Flash ironmaking system and method
Patent number
10,851,430
Issue date
Dec 1, 2020
BEIJING SHANTIE TECHNOLOGY CO., LTD.
Shuhua Deng
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of utilizing furnace off-gas for reduction of iron oxide pel...
Patent number
10,787,717
Issue date
Sep 29, 2020
Narong Limastian
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for producing metallic iron from iron oxide fines
Patent number
10,661,340
Issue date
May 26, 2020
Reid Reactors LLC
Kenneth John Reid
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Multi-stage suspension magnetizing roasting-magnetic separation sys...
Patent number
10,543,491
Issue date
Jan 28, 2020
Northeastern University
Yuexin Han
B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information
Patent Grant
Cost effective plasma combined heat and power system
Patent number
10,539,043
Issue date
Jan 21, 2020
Plasma Tech Holdings, LLC
James Charles Juranitch
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Methods and systems for increasing the carbon content of sponge iro...
Patent number
10,508,314
Issue date
Dec 17, 2019
Midrex Technologies, Inc.
Mirmohammadyousef Motamedhashemi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and apparatus for producing metallic iron from iron oxide fines
Patent number
10,434,576
Issue date
Oct 8, 2019
Reid Reactors LLC
Kenneth John Reid
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Molten iron manufacturing apparatus and molten iron manufacturing m...
Patent number
10,422,582
Issue date
Sep 24, 2019
Posco
Jonghwun Jung
C21 - METALLURGY OF IRON
Information
Patent Grant
Processes for synthesis of reducing gaseous mixtures starting from...
Patent number
10,351,423
Issue date
Jul 16, 2019
Eduardo Luigi Szego
C21 - METALLURGY OF IRON
Information
Patent Grant
Pneumatic ore charging
Patent number
10,337,076
Issue date
Jul 2, 2019
PRIMETALS TECHNOLOGIES AUSTRIA GMBH
Robert Millner
C21 - METALLURGY OF IRON
Information
Patent Grant
Methods and systems for increasing the carbon content of sponge iro...
Patent number
10,316,376
Issue date
Jun 11, 2019
Midrex Technologies, Inc.
Mirmohammadyousef Motamedhashemi
C01 - INORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
IRONMAKING METHOD
Publication number
20240384364
Publication date
Nov 21, 2024
NIPPON STEEL CORPORATION
Moritoshi MIZUTANI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING SLAG HAVING A DESIRED QUALITY
Publication number
20240376559
Publication date
Nov 14, 2024
ThyssenKrupp Steel Europe AG
Thomas BAUR
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR OPERATING A METALLURGICAL PLANT FOR PRODUCING IRON PRODUCTS
Publication number
20240360526
Publication date
Oct 31, 2024
PAUL WURTH S.A.
Cristiano CASTAGNOLA
C21 - METALLURGY OF IRON
Information
Patent Application
IRON-CONTAINING POWDER DIRECT STEELMAKING DEVICE IN REDUCING ATMOSP...
Publication number
20240352547
Publication date
Oct 24, 2024
Xiao ZHAO
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESSES AND METHODS FOR THE PRODUCTION OF IRON AND STEEL
Publication number
20240327937
Publication date
Oct 3, 2024
Calix Ltd.
Mark SCEATS
C21 - METALLURGY OF IRON
Information
Patent Application
SUSTAINABLE STEEL PRODUCTION WITH CO-GENERATION OF HYDROGEN
Publication number
20240327939
Publication date
Oct 3, 2024
Saudi Arabian Oil Company
Faisal B. Almutairi
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS AND A SYSTEM FOR THE PRODUCTION OF SPONGE IRON FROM IRON ORE
Publication number
20240309476
Publication date
Sep 19, 2024
HYBRIT Development AB
Raimon Perea Marin
C21 - METALLURGY OF IRON
Information
Patent Application
System and method for pyrolysis driven reduced iron production usin...
Publication number
20240309477
Publication date
Sep 19, 2024
Molten Industries Inc.
Kevin A. Bush
C21 - METALLURGY OF IRON
Information
Patent Application
AGGLOMERATED ORE ASSESSING METHOD AND AGGLOMERATED ORE
Publication number
20240287631
Publication date
Aug 29, 2024
JFE STEEL CORPORATION
Yuya MORITA
C21 - METALLURGY OF IRON
Information
Patent Application
HYDROGEN GAS RECYCLING IN A DIRECT REDUCTION PROCESS
Publication number
20240279759
Publication date
Aug 22, 2024
HYBRIT Development AB
Raimon Perea Marin
C21 - METALLURGY OF IRON
Information
Patent Application
PRE-REDUCED PELLET PREPARATION APPARATUS AND METHOD BASED ON GRATE-...
Publication number
20240279767
Publication date
Aug 22, 2024
Baoshan Iron & Steel Co., Ltd
Jian Li
C21 - METALLURGY OF IRON
Information
Patent Application
A method for manufacturing direct reduced iron
Publication number
20240263260
Publication date
Aug 8, 2024
ARCELORMITTAL
Sarah SALAME
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
IRON CONVERSION SYSTEM AND APPLICATIONS
Publication number
20240263333
Publication date
Aug 8, 2024
ELECTRASTEEL, INC.
Ai Quoc PHAM
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information
Patent Application
Operating method of a network of plants
Publication number
20240263259
Publication date
Aug 8, 2024
ARCELORMITTAL
George TSVIK
C21 - METALLURGY OF IRON
Information
Patent Application
A method for manufacturing direct reduced iron
Publication number
20240254576
Publication date
Aug 1, 2024
ARCELORMITTAL
George TSVIK
C21 - METALLURGY OF IRON
Information
Patent Application
A method for manufacturing direct reduced iron
Publication number
20240254575
Publication date
Aug 1, 2024
ARCELORMITTAL
Sarah SALAME
C21 - METALLURGY OF IRON
Information
Patent Application
Method for manufacturing Direct Reduced Iron and DRI manufacturing...
Publication number
20240240276
Publication date
Jul 18, 2024
ARCELORMITTAL
George TSVIK
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING DIRECT REDUCED IRON AND DRI MANUFACTURING...
Publication number
20240240275
Publication date
Jul 18, 2024
ARCELORMITTAL
George TSVIK
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing steel
Publication number
20240229174
Publication date
Jul 11, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
A method of manufacturing of a steel product in several steelmaking...
Publication number
20240229175
Publication date
Jul 11, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
PROCESS AND SYSTEMS FOR CARBON-NEGATIVE AND WATER-POSITIVE HYDROGEN...
Publication number
20240217817
Publication date
Jul 4, 2024
Carbon Technology Holdings, LLC
James A. Mennell
C01 - INORGANIC CHEMISTRY
Information
Patent Application
METHOD OF OPERATING AN ELECTRIC ARC FURNACE AND STEEL MILL
Publication number
20240191314
Publication date
Jun 13, 2024
PAUL WURTH S.A.
Jan KRULL
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-EFFICIENCY PHOTONIC FURNACES FOR METAL PRODUCTION
Publication number
20240183614
Publication date
Jun 6, 2024
Limelight Steel Inc.
Olivia Faye DIPPO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
REDUCED IRON PRODUCTION METHOD AND REDUCED IRON PRODUCTION DEVICE
Publication number
20240175101
Publication date
May 30, 2024
JFE STEEL CORPORATION
Koki TERUI
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD AND SYSTEM FOR PRODUCING DIRECT REDUCED METAL
Publication number
20240150859
Publication date
May 9, 2024
GREENIRON H2 AB
Hans MURRAY
C21 - METALLURGY OF IRON
Information
Patent Application
SYSTEMS AND METHODS FOR PRODUCING SYNGAS FROM BIO-OIL
Publication number
20240150170
Publication date
May 9, 2024
Charm Industrial, Inc.
Peter Reinhardt
C21 - METALLURGY OF IRON
Information
Patent Application
A method of manufacturing of a steel product in several steelmaking...
Publication number
20240132984
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
Method of manufacturing steel
Publication number
20240132983
Publication date
Apr 25, 2024
ARCELORMITTAL
Hugo DA GAMA CAMPOS
C21 - METALLURGY OF IRON
Information
Patent Application
METAL OXIDE MATERIAL REDUCTION MEANS
Publication number
20240124948
Publication date
Apr 18, 2024
LUOSSAVAARA-KIIRUNAVAARA AB
Ola Eriksson
C21 - METALLURGY OF IRON
Information
Patent Application
ARRANGEMENT AND PROCESS FOR CHARGING IRON ORE TO, AND/OR DISCHARGIN...
Publication number
20240093330
Publication date
Mar 21, 2024
HYBRIT Development AB
Farzad Mohseni-Mörner
C21 - METALLURGY OF IRON